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https://github.com/ashinn/chibi-scheme.git
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74 lines
3 KiB
Scheme
74 lines
3 KiB
Scheme
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(define-library (chibi regexp)
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(export regexp regexp? valid-sre? rx regexp->sre char-set->sre
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regexp-matches regexp-matches? regexp-search
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regexp-replace regexp-replace-all
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regexp-fold regexp-extract regexp-split
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regexp-match? regexp-match-count
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regexp-match-submatch regexp-match-submatch/list
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regexp-match->list regexp-match->sexp)
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(import (srfi 33) (srfi 69))
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;; Chibi's char-set library is more factored than SRFI-14.
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(cond-expand
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(chibi
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(import (rename (chibi) (protect guard))
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(srfi 9) (chibi char-set)
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(chibi char-set full)
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(prefix (chibi char-set ascii) %)))
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(else
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(import (scheme base) (srfi 14))
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(begin
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(define %char-set:letter
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(char-set-intersection char-set:ascii char-set:letter))
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(define %char-set:lower-case
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(char-set-intersection char-set:ascii char-set:lower-case))
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(define %char-set:upper-case
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(char-set-intersection char-set:ascii char-set:upper-case))
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(define %char-set:digit
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(char-set-intersection char-set:ascii char-set:digit))
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(define %char-set:letter+digit
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(char-set-intersection char-set:ascii char-set:letter+digit))
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(define %char-set:punctuation
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(char-set-intersection char-set:ascii char-set:punctuation))
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(define %char-set:graphic
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(char-set-intersection char-set:ascii char-set:graphic))
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(define %char-set:whitespace
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(char-set-intersection char-set:ascii char-set:whitespace))
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(define %char-set:printing
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(char-set-intersection char-set:ascii char-set:printing))
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(define %char-set:iso-control
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(char-set-intersection char-set:ascii char-set:iso-control)))))
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(import (chibi char-set boundary))
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;; Use string-cursors where available.
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(begin
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(define string-cursor? integer?))
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(cond-expand
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(chibi
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(begin
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(define (string-start-arg s o)
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(if (pair? o) (string-index->offset s (car o)) (string-cursor-start s)))
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(define (string-end-arg s o)
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(if (pair? o) (string-index->offset s (car o)) (string-cursor-end s)))
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(define (string-concatenate-reverse ls)
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(string-concatenate (reverse ls)))))
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(else
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(begin
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(define (string-start-arg s o)
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(if (pair? o) (string-index->offset s (car o)) 0))
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(define (string-end-arg s o)
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(if (pair? o) (string-index->offset (car o)) (string-length s)))
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(define string-cursor=? =)
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(define string-cursor<? <)
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(define string-cursor<=? <=)
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(define string-cursor>? >)
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(define string-cursor>=? >=)
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(define string-cursor-ref string-ref)
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(define (string-cursor-next s i) (+ i 1))
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(define (string-cursor-prev s i) (- i 1))
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(define substring-cursor substring)
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(define (string-offset->index str off) off)
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(define (string-index->offset str i) i)
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(define (string-concatenate ls) (apply string-append ls))
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(define (string-concatenate-reverse ls)
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(string-concatenate (reverse ls))))))
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(include "regexp.scm"))
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